import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';


class SelfContainer extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('SelfText')),
      body: Container(
        width: 200,
        height: 200,
        margin: EdgeInsets.all(20.0),
        padding: EdgeInsets.all(50),
        // 装饰器
        decoration: BoxDecoration(
          color: Colors.yellow
        ),
        
      ),
    );
  }
}

